Process for treating garbage.



T. C. PARDINGTON & J. G. ASHBY. PROCESS FOR TREATING GARBAGE.

APPLICATION FILED 0CT.2I, I9ll.

Patented J uly I [M We m ions I in,

'rnonas c. rAanINc'roN, or CINCINNATI, AND JOHN G. ASHBY, or MoNrconna'r omo.

PROCESS FOR TREATING GABG-E.

Specification of Letters Patent.

Patented July 3, 12115..

To all whom it may concern Be it known that we, THOMAS C. PARDING- TON and JOHN G. ASHBY, both citizens of the United States, and residents, respectively, of Cincinnati, Hamilton county, Ohio, and of Montgomery, Hamilton county, Ohio, have invented certain new and useful Improvements in Processes for Treating Garbage, of which the following is a specification.

Our invention relates to new and useful improvements in the process of treating garbage, and its salient features and advantages consist in subjecting the garbage to high steam pressure 'in cookers, and while this cooking process is progressing in moving the cooking garbage upward from the bottom, so that none of the garbage can settle,-but is so agitated that all the garbage will be subjected to the same action; thus quickly and thoroughly cooking the garbage; further, in carrying thefumes and volatlle oils into a condenser and from the condenser following specification.

In the accompanying drawing forming part of this specification the figure is a side elevation of the entire system and apparatus, parts being shown in section to illustrate interior construction.

- In carrying out our invention weprovide a cooker as 1, shaped as shown and preferably tapered or funnel-like at its lower extremity, a manhole 2 being provided at top of cooker. On the interior 'of the cooker 1 we provide a ring or annulus 3, having depending therefrom around the cooker, near its wall, a series 'of pipes 4. The steam pipes 4 are perforated so that they will emit steam which passes into them from the superheated steam inlet pipe 5, through the ring 3, the superheating apparatus not being shown.

ouh and into the center of the cooker v7 and 8 in the cooker.

1, we pass a shaft 6, journaled in bearings On this shaft 10, so as to turn the conveyer 9 to the right or left, to move the garbage under treatment upward in the cooker 1, or force the cooked garbage down and out of the cooker into the sanitary car for removing the acted upon garbage. A valve 17 controls the steam inlet pipe 3. A water pipe 18 con trolled by valve 19 enters the cooker 1 at any suitable point.

We provide a condenser 20 having a pipe 21 therein, and connected to the cooker by a pipe 22 controlled by a valve 23. Cold water enters the condenser 20 through the pipe 23 and passes out through pipe 24 in a heated state as it has come into contact with the'pipe 21, which is of course heated by the steam laden with the fumes and volatile oils. The pipes 23 and 24: are controlled by valves as 25. A tank 26 for receiving the volatile oils is connected to the condenser 20 by a suitable pipe 27. The volatile oil 'tank 26 has a pipe and valve connection 28 through which the oil is drawn 0d and an exit pipe and valve connection 29 which leads to the sewer for conveying ofi' any remaining gases or fumes.

We provide further, a fatty oil tank 30, into which the fatty oils pass from the cooker 1 through pipe 31 controlled by valve 32. Draw-ofl' valve controlled pipes 33 are provided in the tank 30 to draw 03 the different grades of oils, and a valve controlled pipe 34 is presentfor the purpose of drawing 0H any refuse or sediment.

For removing the acted upon garbage, which is used as afertilizer, we provide a sanitary car or truck 35, having an exit gate as 36 in the bottom thereof. At the top this car is provided with a mouth having an annular downwardly extending flange 37, which fits the funnel-shaped mouth 38 at extremity of cooker 1. A sliding gate 39 is provided at the bottom of the cooker 1, through which the garbage passes into the car 35. When the car 35 has been filled the gate 39 is placed in its noal potion, and

"4a I in the cooker orclean it, water may be steam is now admitted into the cooker through the steam pipe 5, the steam passing into the annulus 3 and into pipes 4:, and out through the perforations therein into the garbage, cooking out all the oils and grease,

and while this cooln'ng is progressing the conveyer 9, moving in the direction of the arrow, is continuously lifting the garbage from the bottom to top of cooker, thoroughly agitating it and allowing the steam to thoroughly and quickly permeate every parit'may be removed to any ti'cle-of the garbage, thusboiling out all' the oils, the volatile oils and fumes passing out with the steam into the condenser 20, where, coming into' contact with the cold water, the steam is condensed and the volatile oils are precipitated into tank 26 through pipe 27 and the fatty oils pass through pipe 31 into the tank any fumes or noxious gases or smells are passed into the sewer through the exit pipe 29; all these steps ofcourse requiring the opening and closing of the various valves at the proper time.

When the garbage has been sufiiciently acted upon, the sanitary car 35 is placed under the mouthofthe cooker and the garbage .is forced down by reversing the motion of shaft h, so that the conveyer 9 will revolve m a direction opposite to that shown by the arrow, and thus convey the garbage out of the cooker into the'car; and from this point point. At any time 1t may be desired to float the fatty oils forced into the cooker through the pipe 18.

I That part of the processwhich forces. the 1 a garbage up against the superheated steam 'tained by which the garbage and steam are is not a mereiagitation, but a result is obinteriningldflhegagbag being divided into particlesflthus rendering the action of the steam more eeificientyjaf'greater amount of 'oils .andfatly extracted from the garbage injaymorelimitedamount of not limiting ourselves to the exact and specific construction herein shown for carryln out our process, but it may be modified; an

- may be made of any size, shape or contour.

What we claim as new and our invention, and desire to secure by Letters Patent is: 1. The process of treating garbage, consisting in subjecting the garbage to the action of highly heated steam in a closed tank, while the garbage is forced to travel upward within the tank, condensing the fumes in a condenser, and separately drawing off the volatile and fatty oils, then forcing the acted upon garbage into a vessel from the bottom of the cooker, said vessel capable of being closed air tight.

2. The process of treating garbage, consisting in subjecting the garbage to the action of highly heated steam -in a closed cooker and agitating same by screwpower and forcing the garbage to travel upward within the tank, condensing the fumes in a condenser, and separately drawing ofl the volatile and fatty oils, then forcing the acted upon garbage into a vessel from the bottom of the cooker, said vessel capable of being closed air tight to prevent noxious smells.

3. The process of treating garbage, consisting in subjecting the garbage to the action of highly heated steam in a closed tank at the top and throughout the extent of the tank, while the garbage is being stirred and lifted upward by revolving means in the tank, condensin the fumes in a condenser, and separately rawing off the volatile and fatty oils.

4. The process of treating garbage, consisting in subjecting the garbage to the action of highly heated steam in a closed tank, more directly at the top and throughout the sides of the tank while the garbage is being stirred and lifted upward by revolving means in the tank, condensing the fumes,

separating and drawing off the volatile and fatty oils, then forcing the acted upon garbage into a vessel from the bottom of the tank, said vessel capable of being closed air-tight.

' THOMAS C. PARDINGTON.

. JOHN G. ASHBY.

Witnesses: j V THOMAS H. STAYLON, H. E'. CARSTENS. 

